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Valves and flow control

Manual and mechanical valvesActuated valvesControl valvesSolenoid valvesActuators and control accessories

Pipe and piping fittings

Industrial pipesButt-weld fittingsHigh-pressure forged fittingsThreaded and galvanized fittingsReinforced branch outletsPolymer pipe, valves and fittings

Joining, flanges and sealing

Industrial flangesGaskets and sealing systemsLine blinds and isolation platesStud bolts, bolts and nuts

Steam, strainers and equipment protection

Steam and condensate equipmentPipeline strainers and filters

Instrumentation and measurement

Process measurement instrumentsInstrument fittings and manifolds

Supports and flexible connections

Pipe supports, hangers and clampsExpansion joints and flexible connectors

Steel products and sections

Industrial steel sections and products

Valves and flow control

Actuated valves

An actuated package must be selected from actual valve torque, safety factor, power source, travel time, cycle count and fail position, then function-tested before delivery.

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Type and construction

Available types

Each type has its own technical page
1

Electric actuated ball valve

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Pneumatic actuated ball valve

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Electric actuated butterfly valve

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Pneumatic actuated butterfly valve

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Pneumatic diaphragm valve

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Pneumatic knife gate valve

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Pneumatic pinch valve

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Actuated three-way valve

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Emergency shutdown valve

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Hygienic actuated valve

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Quick comparison

How the main types differ in selection

Open a type for full details
TypePurposeBest suited toWatchpoint
Electric actuated ball valveFast isolation with a low-restriction flow pathServices requiring tight isolation and quarter-turn operationSeat compatibility, trapped cavity, torque and body-cavity pressure rise
Pneumatic actuated ball valveFast isolation with a low-restriction flow pathServices requiring tight isolation and quarter-turn operationSeat compatibility, trapped cavity, torque and body-cavity pressure rise
Electric actuated butterfly valveIsolation or control with a compact quarter-turn designMedium and large sizes, water, utilities and many process servicesSeat design, offset, disc-to-pipe clearance and permitted velocity
Pneumatic actuated butterfly valveIsolation or control with a compact quarter-turn designMedium and large sizes, water, utilities and many process servicesSeat design, offset, disc-to-pipe clearance and permitted velocity
Pneumatic diaphragm valveIsolation of the process fluid from moving parts by a flexible diaphragmChemicals, corrosive fluids or duties requiring clean containmentDiaphragm material and life, temperature, pressure and chemical compatibility
Pneumatic knife gate valveFull-line isolation with low pressure loss when openLines where the valve normally operates fully open or fully closedNot intended for continuous throttling; check orientation, gate design and face-to-face
Pneumatic pinch valveManaging flow within process pipingIsolation, control, protection or automation as required by designPressure, temperature, fluid, leakage, materials and operation
Actuated three-way valveManaging flow within process pipingIsolation, control, protection or automation as required by designPressure, temperature, fluid, leakage, materials and operation
Emergency shutdown valveManaging flow within process pipingIsolation, control, protection or automation as required by designPressure, temperature, fluid, leakage, materials and operation
Hygienic actuated valveManaging flow within process pipingIsolation, control, protection or automation as required by designPressure, temperature, fluid, leakage, materials and operation

Before selection

Information to define

  1. 1Valve torque
  2. 2Actuator type and supply
  3. 3Fail position
  4. 4Travel time
  5. 5Ingress protection and hazardous area
  6. 6Feedback and control signal

Typical materials

Carbon steelStainless steelDuctile ironEngineering plastics

Typical connections

FlangedThreadedWeldedHygienic clampPolymer socket

Typical media

ProcessWaterSteamChemicalsSlurry

Function

What does this family do?

Isolation and shut-off

Full flow shut-off for operation, maintenance or process safety

Functional selection guide

Routing, branching and mixing

Changing line direction, dividing or combining flow and creating branches

Functional selection guide

Automation and actuation

Valve movement, command input and position feedback to the control system

Functional selection guide

Modulation and continuous control

Modulation of flow, pressure, temperature or level by manual or automatic command

Functional selection guide

Technical reference

Related standards

The exact edition and requirements must be checked against the project specification.

ISO 5211IEC 60529API 6DIEC 61508

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Related families

Manual and mechanical valves

The broadest family for isolation, non-return, pressure regulation and line protection

Actuators and control accessories

Valve movement, control and position monitoring in manual and automated systems

Control valves

Continuous modulation of flow, pressure, temperature or level with the required flow characteristic

Solenoid valves

Fast electrical switching for process fluids, air, water, gas and steam

Engineering note

This page supports initial screening and does not replace engineering calculations, project specifications, manufacturer approval or design pressure-temperature checks.

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